[wayneo69]

we have had very few problems with the diesel, replaced a water pump for engine vibration and there is a tsb for the torque converter shudder. 3.7 have more than there share of vaulve problems mostly pitting or vaulve seats breaking off end up replacing the piston and head but most of are customers get fuel induction cleanings regularly and that knocks down the carbon build up and helps to prevent major pitting so you dont get the misfire codes and have leak down problems from the pitted vaulves helps to prevent that stuff but there is stuff out on the market to put in your gas tank that will do the same thing if used regularly hope this helps out